CN103666626A - Anti-sintering biomass fuel particle and preparation method thereof - Google Patents
Anti-sintering biomass fuel particle and preparation method thereof Download PDFInfo
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- CN103666626A CN103666626A CN201310643512.5A CN201310643512A CN103666626A CN 103666626 A CN103666626 A CN 103666626A CN 201310643512 A CN201310643512 A CN 201310643512A CN 103666626 A CN103666626 A CN 103666626A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention relates to the field of biomass fuels, and concretely relates to an anti-sintering biomass fuel particle and a preparation method thereof. The anti-sintering biomass fuel particle comprises 25-45wt% of tree bark, 30-50wt% of kernel shell, 20-45wt% of bamboo sawdust and 1-3wt% of an acidic oxide. The biomass fuel has a low water content, a low alkaline earth metal content and a high lignin content; and compared with routine biomass fuel particles obtained after the compression molding of straws, the biomass fuel obtained in the invention has the advantages of high fuel value, long combustion time, difficult residue bonding by adjusting the particle properties through the added acidic oxide, and no emission of harmful gases or acidic gases after the combustion.
Description
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Technical field
The present invention relates to biomass fuel field, be specifically related to a kind of anti-sintering biomass fuel pellet and preparation method thereof.
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Background technology
The fuel major part that people use is at present the fossil energies such as coal, oil, Sweet natural gas, Nonrenewable resources, under the large-scale exploitation of the mankind, will peter out, and can in air, discharge a large amount of toxic gases when burning, to atmosphere, cause severe contamination, the mankind replace at the reproducible clean fuel of searching for this reason.
And agriculture and forestry organic waste material, if stalk, sawdust, bagasse, rice chaff etc. are green energy resources as biomass fuel, the fuel that national policy is encouraged, there is following characteristic: the total carbon dioxide capacity that the carbonic acid gas absorbing by photosynthesis in biomass process of growth and its burning discharge is suitable, angle from life cycle, biomass combustion release of carbon dioxide, the increase that does not bring carbon dioxide content in atmosphere.Therefore,, according to national agreement, this part carbonic acid gas is not processed as greenhouse gases.
But in biomass combustion process, because biomass contain more moisture and basic metal material (especially agricultural crop straw), during burning, easily cause that fouling and slagging damages burning bed, also sintering phenomenon may occur.In biomass, high alkali metal content (K, Na) causes the ash fusion point of biomass lower, to combustion processes, brings many problems.In burning, utilize in process, high alkali metal content is the important factor that causes boiler surface dust stratification, slagging scorification and corrosion, can directly cause boiler life and thermo-efficiency reduction etc.; High alkali metal content also easily causes that the agglomerate of bed material, slagging scorification destroy the fluidisation in bed, worsen combustion conditions simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of low alkali content, a kind of biomass fuel pellet of anti-sintering.
Another object of the present invention is to provide the preparation method of above-mentioned biomass fuel pellet.
Technical problem to be solved by this invention is achieved by the following technical programs:
An anti-sintering biomass fuel pellet, is comprised of the component of following weight percent:
Bark 25 ~ 45%;
Kernel shell 30 ~ 50%;
Bamboo bits 20 ~ 45%;
Acidic oxide 1 ~ 3%.
Further, described bark is selected from bark of dahurian larch, and its content of lignin is 28 ~ 35%.
Further, described kernel shell is selected from Semen Canarii albi shell.
Further, alkali metal Han Liang≤3% of described bark, kernel shell.
Further, the K of described bark, kernel shell, Han Liang≤3% of Na.
In the middle of the present invention, the bark of dahurian larch that selection content of lignin is high, Semen Canarii albi shell are as material of main part, and it has, and alkali metal content is low, content of lignin high, can effectively improve the fuel value of biomass fuel, reduce gray scale and slagging scorification problem.Bamboo used is considered its xylogen to be worth doing and also has very high content, contributes to promote the fuel value of biomass fuel pellet and increases combustion time.
Further, described acidic oxide is the mixture of aluminum oxide, titanium dioxide.
Acidic oxide works to improve ash fusion point, and grey melt temperature increases with its content and constantly raises, and aluminum oxide and titanium dioxide Heat stability is good, is at high temperature also not easy to change.
Further, the Han Shui of described bark Shuai≤8%.
Further, the Han Shui of described shell, bamboo bits Shuai≤5%.
A preparation method for anti-sintering biomass fuel pellet, steps of the method are:
A) weigh: bark, kernel shell, bamboo bits, acidic oxide are weighed in proportion;
B) pulverize: the bark in step a, kernel shell, bamboo bits are pulverized respectively;
C) screening and oven dry: the powder body material that step b is obtained is dried respectively, and removes comparatively large vol simultaneously and pulverize incomplete component, control the water ratio of bark, kernel shell, bamboo bits;
D) mix: the components such as the bark after drying in step c, kernel shell, bamboo bits, acidic oxide are mixed by stirrer;
E) granulation: the components such as the bark after mixing in steps d, kernel shell, bamboo bits, acidic oxide are compressed into particle by granulator;
F) cooling: after particle in step e is cooling, to obtain described anti-sintering biomass fuel pellet.
The present invention has following beneficial effect:
Biomass fuel water ratio of the present invention is low, alkaline earth metal content is low, content of lignin is high, compare with the conventional biomass fuel pellet with straw compressing and forming, biomass fuel combustion value of the present invention is high, and combustion time is long, by the acidic oxide adding, regulates biomass fuel pellet character, make it be difficult for slagging scorification, after this biomass fuel pellet burning, there is no the discharge of obnoxious flavour.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention, is not limitation of the invention.
embodiment 1
An anti-sintering biomass fuel pellet, by weight percentage:
Bark of dahurian larch 32%; Semen Canarii albi shell 40%; Bamboo bits 26%; Aluminum oxide 1%, titanium dioxide 1%.The content of lignin of described bark is 28 ~ 35%%; The content of lignin of described bamboo bits is 23 ~ 32%.The Han Shui of described bark Shuais≤and 8; The Han Shui of described shell, bamboo bits Shuais≤and 5%.The K of described bark, kernel shell, Han Liang≤3% of Na.
This preparation method is:
A) weigh: bark, kernel shell, bamboo bits, acidic oxide are weighed in proportion;
B) pulverize: the bark in step a, kernel shell, bamboo bits are pulverized respectively;
C) screening and oven dry: the powder body material that step b is obtained is dried respectively, and removes comparatively large vol simultaneously and pulverize incomplete component, control the water ratio of bark, kernel shell, bamboo bits;
D) mix: the components such as the bark after drying in step c, kernel shell, bamboo bits, acidic oxide are mixed by stirrer;
E) granulation: the components such as the bark after mixing in steps d, kernel shell, bamboo bits, acidic oxide are compressed into particle by granulator;
F) cooling: after particle in step e is cooling, to obtain described anti-sintering biomass fuel pellet.
embodiment 2
An anti-sintering biomass fuel pellet, by weight percentage:
Bark of dahurian larch 26%; Semen Canarii albi shell 48%; Bamboo bits 25%; Aluminum oxide 0.2%, titanium dioxide 0.8%.The content of lignin of described bark is 28 ~ 35%%; The content of lignin of described bamboo bits is 23 ~ 32%.The Han Shui of described bark Shuais≤and 8; The Han Shui of described shell, bamboo bits Shuais≤and 5%.The K of described bark, kernel shell, Han Liang≤3% of Na.This preparation method is with embodiment 1.
embodiment 3
An anti-sintering biomass fuel pellet, by weight percentage:
Bark of dahurian larch 42%; Semen Canarii albi shell 34%; Bamboo bits 22%; Aluminum oxide 1.5%, titanium dioxide 0.5%.The content of lignin of described bark is 28 ~ 35%%; The content of lignin of described bamboo bits is 23 ~ 32%.The Han Shui of described bark Shuais≤and 8; The Han Shui of described shell, bamboo bits Shuais≤and 5%.The K of described bark, kernel shell, Han Liang≤3% of Na.This preparation method is with embodiment 1.
embodiment 4
An anti-sintering biomass fuel pellet, by weight percentage:
Bark of dahurian larch 27%; Semen Canarii albi shell 30%; Bamboo bits 40%; Aluminum oxide 1.5%, titanium dioxide 1.5%.The content of lignin of described bark is 28 ~ 35%%; The content of lignin of described bamboo bits is 23 ~ 32%.The Han Shui of described bark Shuais≤and 8; The Han Shui of described shell, bamboo bits Shuais≤and 5%.The K of described bark, kernel shell, Han Liang≤3% of Na.This preparation method is with embodiment 1.
the test of fuel value
The test of fuel value adopts GB213-87
The fuel value of standard coal is 29.26 MJ/kg.
After testing, the fuel value of embodiment 1 is 21.46MJ/kg; The fuel value of embodiment 2 is 21.32 MJ/kg; The fuel value of embodiment 3 is 21.09 MJ/kg; The fuel value of embodiment 4 is 21.38 MJ/kg.
The above embodiment has only expressed embodiments of the present invention; it describes comparatively concrete and detailed; but can not therefore be interpreted as the restriction to the scope of the claims of the present invention; as long as employing is equal to the technical scheme that the form of replacement or equivalent transformation obtains, within all should dropping on protection scope of the present invention.
Claims (9)
1. an anti-sintering biomass fuel pellet, is characterized in that being comprised of the component of following weight percent:
Bark 25 ~ 45%;
Kernel shell 30 ~ 50%;
Bamboo bits 20 ~ 45%;
Acidic oxide 1 ~ 3%.
2. a kind of anti-sintering biomass fuel pellet according to claim 1, is characterized in that: described bark is selected from bark of dahurian larch, and its content of lignin is 28 ~ 35%.
3. a kind of anti-sintering biomass fuel pellet according to claim 1, is characterized in that: described kernel shell is selected from Semen Canarii albi shell.
4. according to a kind of anti-sintering biomass fuel pellet described in claim 1 ~ 3 any one, it is characterized in that: alkali metal Han Liang≤3% of described bark, kernel shell.
5. a kind of anti-sintering biomass fuel pellet according to claim 4, is characterized in that: the K of described bark, kernel shell, Han Liang≤3% of Na.
6. a kind of anti-sintering biomass fuel pellet according to claim 1, is characterized in that: described acidic oxide is the mixture of aluminum oxide, titanium dioxide.
7. a kind of anti-sintering biomass fuel pellet according to claim 1 and 2, is characterized in that: the Han Shui of described bark Shuais≤and 8%.
8. according to a kind of anti-sintering biomass fuel pellet described in claim 1 or 3, it is characterized in that: the Han Shui of described shell, bamboo bits Shuais≤and 5%.
9. a preparation method for a kind of anti-sintering biomass fuel pellet described in claim 1 ~ 3 any one, is characterized in that steps of the method are:
A) weigh: bark, kernel shell, bamboo bits, acidic oxide are weighed in proportion;
B) pulverize: the bark in step a, kernel shell, bamboo bits are pulverized respectively;
C) screening and oven dry: the powder body material that step b is obtained is dried respectively, and removes comparatively large vol simultaneously and pulverize incomplete component, control the water ratio of bark, kernel shell, bamboo bits;
D) mix: the components such as the bark after drying in step c, kernel shell, bamboo bits, acidic oxide are mixed by stirrer;
E) granulation: the components such as the bark after mixing in steps d, kernel shell, bamboo bits, acidic oxide are compressed into particle by granulator;
F) cooling: after particle in step e is cooling, to obtain described anti-sintering biomass fuel pellet.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104927964A (en) * | 2015-07-02 | 2015-09-23 | 湖北天合嘉康能源科技有限公司 | Biomass forming fuel as well as production method and production system thereof |
| CN106281534A (en) * | 2015-06-09 | 2017-01-04 | 许成荫 | A kind of dejecta fuel preparation technology |
| CN106544072A (en) * | 2016-11-04 | 2017-03-29 | 黄山锦富生物能源有限公司 | A kind of biological granular fuel with bamboo as major ingredient |
| CN110331015A (en) * | 2019-06-28 | 2019-10-15 | 安徽杰沃循环农业发展有限公司 | A method of high heating value biomass granule fuel is prepared using stalk |
| CN110527574A (en) * | 2019-06-13 | 2019-12-03 | 山东马王芳凤新能源科技有限公司 | A kind of formula and its production technology of biomass fuel pellet |
| CN112500899A (en) * | 2020-10-27 | 2021-03-16 | 怀宁县泰华新能源科技有限公司 | Low-corrosion biomass fuel |
| CN113293041A (en) * | 2021-04-13 | 2021-08-24 | 常州安斯克节能科技有限公司 | Novel biomass solidified forming fuel particle and production equipment thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104927964A (en) * | 2015-07-02 | 2015-09-23 | 湖北天合嘉康能源科技有限公司 | Biomass forming fuel as well as production method and production system thereof |
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| CN113293041A (en) * | 2021-04-13 | 2021-08-24 | 常州安斯克节能科技有限公司 | Novel biomass solidified forming fuel particle and production equipment thereof |
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| CN103666626B (en) | 2016-03-02 |
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Effective date of registration: 20160802 Address after: 516860 Guangdong County of Longmen city in Huizhou Province Ma Zha Zhenyuan plastic factory Patentee after: Longmen county dragon biological energy Co., Ltd. Address before: 516860 Guangdong County of Longmen city in Huizhou Province Ma Zha Zhenyuan plastic factory Patentee before: Ye Jiezhen |